下列各组数中，属于勾股数的是_刷题宝

题干

下列各组数中，属于勾股数的是（　　）

A：2.5，6，6.5

B：5，7，10

C： $\sqrt{2}$ , $\sqrt{3}$ , $\sqrt{5}$

D：6，8，10

上一题下一题 0.0难度选择题更新时间:2019-12-03 11:13:14

答案(点此获取答案解析）

D

同类题1

小王设计的“测食用油密度”的实验方案：在烧杯内倒入适量的食用油，用调节平衡的天平测出烧杯和食用油的总质量189g，然后将烧杯内的适量食用油倒入量筒内，再测出烧杯和剩余食用油的总质量，读出量筒内食用油的体积,再计算出密度.下图是按小王的实验方案进行某次实验的情况，请将实验的数据及测量结果填入下表中。

同类题2

一条绳子，第一次用了

\frac{1}{7}

，第二次用了

\frac{3}{7}

，两次一共用了几分之几？还剩几分之几？

同类题3

下列有机化合物中，只含有C，H，O三种元素的是（　　）

同类题4

从{1，2，3，4，5}中随机选取一个数为a，从{1，2，3}中随机选取一个数为b，则使得b≠a的不同取法共有____种．

同类题5

根据短文理解，从A、B、C三个选项中选择最佳答案填空。

Jimmy is an English boy. He wants to have a friend in China. He likes 1 very much. It's relaxing for him. He plays sports 2 his classmates after class. He has five soccer balls, two 3 and one basketball. But he doesn't like tennis. He thinks it's 4.

Jimmy has a healthy eating 5. He likes fruit and vegetables. 6 are his favorite (最喜欢的) vegetables. He often (经常) has fruit salad 7 dinner. He doesn't eat 8 or ice-cream. He doesn't want to be 9.

Do you like him? Do you 10 to be his friend? You can e-mail him at jimmy 012@ yahoo.cn.

小学学科试题库

初中学科试题库

高中学科试题库